$OpenBSD: patch-Makefile,v 1.1.1.1 2013/12/11 14:38:44 jca Exp $
--- Makefile.orig	Tue Sep  3 16:05:52 2013
+++ Makefile	Wed Dec 11 12:56:38 2013
@@ -2,7 +2,7 @@ CFLAGS=-O3
 CROSS=
 DESTDIR=
 GTK_VERSION=0
-PQIV_WARNING_FLAGS=-Wall -Wextra -Wfloat-equal -Wpointer-arith -Wcast-align -Wstrict-overflow=5 -Wwrite-strings -Waggregate-return -Wunreachable-code -Werror -Wno-unused-parameter
+PQIV_WARNING_FLAGS=-Wall -Wextra -Wfloat-equal -Wpointer-arith -Wcast-align -Wstrict-overflow=5 -Wwrite-strings -Waggregate-return -Wunreachable-code -Wno-unused-parameter
 PREFIX=/usr
 EXECUTABLE_EXTENSION=
 
